International Astronomical Union                    European Space Agency

• Division VII Galactic System

• Commission 8  Astrometry

• Commission 27 Variable Stars

• Commission 28 Galaxies

• Commission 33 Structure and Dynamics of the Galactic System

• Commission 37 Star Clusters and Associations

• Working Group (Commission 34) on Star Formation

• Commission 35 Stellar Constitution

• Commission 40 Radio Astronomy

• Commission 42 Close Binary Stars

• Working Group (Division IV) on Massive Stars

European Science Foundations        Department of Physics-Drexel University